Cubic

Cubic is an AI code-review service for teams using GitHub pull requests. It is best for teams that want reviews shaped by their codebase and their own review practices. Its automated workflow and codebase scans are useful strengths, but GitHub-only hosting and per-developer review limits make it a poor fit for teams on other hosts or with unpredictable review volume.

Overview

Cubic checks pull requests against the wider codebase and team rules, so review can account for possible effects beyond the changed lines. It also scans codebases for bugs and security issues. Learning from senior developers’ past comments and team feedback gives teams a way to align suggestions with established review practices.

Review scope has a hard boundary: on a pull request with more than 200 eligible files, Cubic selects up to 200 of the highest-priority files. Teams making exceptionally broad changes should not expect every eligible file to be reviewed.

Key features

• Review workflow: Cubic can auto-approve low-risk pull requests, assign each pull request a merge confidence score from 1 to 5, and let coding agents fix findings. That suits teams seeking to reduce routine review work while keeping a signal about merge confidence; teams that want review to remain entirely manual may not need these controls.
• Team-specific context: Past senior-developer comments and feedback on suggestions inform its review behavior. This is useful for teams trying to make automated review reflect their practices, though it depends on having relevant review history and feedback.
• Language and host coverage: Cubic describes itself as language-agnostic and names JavaScript, TypeScript, Python, Go, Ruby, Java, and C# among supported languages. Host support is narrower: it supports GitHub and GitHub Enterprise Cloud, but not GitHub Enterprise Server, GitLab, or Bitbucket.
• Security and data handling: Cubic says it is SOC 2 Type I compliant, encrypts data in transit with TLS 1.2+ and at rest with AES-256, and bars its AI providers from training on customer code. Reviews run in isolated containers, with AI processing the pull request diff and only the context needed for review.

Pricing

Cubic has a free plan and a free trial. Starter Free costs nothing and allows 20 PR reviews a month; it is free for public repositories. That gives public projects a way to use the service without a paid subscription, but the monthly review cap is restrictive for busier teams.

Team costs $30 a month, billed yearly, at $30 per developer / month. It includes 40k reviewed lines per developer, 5 custom review agents, 5 private wikis, PR and CLI reviews, and Jira, Linear, and Asana integrations. It is the entry paid tier for teams wanting private team resources and workflow integrations, but the per-developer allowance means total capacity scales with seats and can be exceeded.

Pro costs $79 a month, billed yearly, at $79 per developer / month. It doubles the reviewed-line allowance to 80k per developer, raises the custom review agents to 10, adds codebase scans for 3 repositories, and includes premium support with a shared Slack channel. It fits teams that need scanning and closer support, though its higher per-developer price is a meaningful step up from Team.

Max costs $160 a month, billed yearly, at $160 per developer / month. It includes every Pro feature and provides 160k reviewed lines per developer. The larger allowance is for teams with heavier review volume; teams that do not need that capacity may find Pro a more proportionate choice.

Enterprise has custom pricing and offers SSO/SAML, audit logs, custom terms, and custom review limits, with dedicated support. It is aimed at organizations needing those controls or negotiated limits rather than a fixed per-developer package.

Team, Pro, and Max reviewed-line allowances are not unlimited: reviews pause until the next billing period when a team exceeds its allowance, unless an admin enables flex capacity at $20 per 10,000 extra lines, up to a configured monthly limit. Confluence and MCP integrations are available on certain paid plans.

Platforms

Cubic is available on the web and offers desktop builds for macOS Apple Silicon, macOS Intel, Windows, and Linux. Its platform coverage does not expand its host support beyond GitHub and GitHub Enterprise Cloud.

Who it's for

Cubic is a sensible choice for GitHub teams that want codebase-aware pull request reviews, configurable team context, automated triage, or codebase scans. It is less suitable for teams on GitLab, Bitbucket, or GitHub Enterprise Server, and for organizations whose review volume regularly exceeds the included lines and cannot be managed through flex capacity.

Pros and cons

• Pro: Reviews consider the wider codebase and team rules, which can catch risks outside the changed lines.
• Pro: Senior-reviewer history and team feedback can tune suggestions to a team's practices.
• Pro: Scans, confidence scoring, low-risk auto-approval, and agent-assisted fixes support more than basic comment generation.
• Con: Git hosting is limited to GitHub and GitHub Enterprise Cloud, excluding several common alternatives.
• Con: Every paid tier has a per-developer reviewed-line allowance; exceeding it pauses reviews unless flex capacity is enabled.
• Con: Pull requests with more than 200 eligible files receive review on at most 200 selected files.

Alternatives

Compare AI Code Review Tools or Code review software if you want to survey the category. Consider CodeRabbit for another freemium option with public-repository reviews free forever and broader listed platform coverage, including self-hosted and extension options. DeepSource is another freemium choice; its Open Source plan includes unlimited public repositories and unlimited team members, alongside a stated monthly pull request review allowance. LiveReview is another freemium alternative with listed extension and self-hosted platform options. Octopus may suit teams seeking self-hosting: its free, source-available plan has no platform fees but requires customers to supply AI keys or run local models. ThinkReview offers a $10 a month Lite plan with 15 review credits a day and up to 3 custom review agents per pull request. Ironwood AI is a paid alternative with a 30-day evaluation that includes two developers and unlimited repositories and reviews. AI Code Reviewer is a free, self-hosted option where users pay only their model provider’s usage. Codacy may appeal to developers seeking an IDE plugin with support for 38 programming languages and VSCode, JetBrains, and Cursor integrations.

Verdict

Choose Cubic if your team works on GitHub and wants pull request reviews informed by codebase context and team feedback, with scanning and workflow automation in the same service. Look elsewhere if you need another Git host, broader large-change review coverage, or review capacity without per-developer limits and overage decisions.